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$371+ Cheap flights from Seattle (SEA) to London City (LCY)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 11/8. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — LCY
Nov 23 — Nov 301
Sun 11/23
Sun 11/30
1 adult, Economy
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Cheap flight deals from Seattle to London City

Discover tips and strategies to find the most affordable flight options for your journey from Seattle (SEA) to London City (LCY). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated October 24, 2025.

Most accurate provider

Expedia
2 stars

Most trusted provider

Expedia
3 stars

Round-trip from

$615
(KAYAK)

One-way from

$371
(Kiwi.com)

Popular in

June

Cheapest in

October

Average price

$663
Provider with most accurate pricing for Seattle/Tacoma Intl-London City flight deals.
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Provider most trusted by Cheapflights users for Seattle/Tacoma Intl-London City flights.
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From Seattle/Tacoma Intl to London City
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One-way flight from Seattle/Tacoma Intl to London City
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Highest demand for flights based on searches. 15% potential increase in price ($135 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($22 potential savings vs. average RT price).
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Average for round-trip flights in October 2025
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Find flight deals from Seattle to London City

Cheapest flights from Seattle to London City
Explore the most affordable flight options available from Seattle to London City. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 24, 2025.

This KAYAK deal was found by Cheapflights users on 10/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/91:05 pmSEA - LCY
2 stops20h 00mSWISS
Tue 12/169:15 amLCY - SEA
2 stops22h 00mSWISS
Deal found 10/23$615
This KAYAK deal was found by Cheapflights users on 10/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/111:20 pmSEA - LCY
2 stops19h 45mSWISS
Tue 11/259:15 amLCY - SEA
2 stops19h 36mSWISS
Deal found 10/23$635
This KAYAK deal was found by Cheapflights users on 10/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/182:40 pmSEA - LCY
2 stops18h 25mSWISS
Wed 11/269:20 amLCY - SEA
2 stops21h 08mSWISS
Deal found 10/21$636
This Virgin Atlantic deal was found by Cheapflights users on 10/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Virgin Atlantic is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/97:20 amSEA - LCY
2 stops15h 55mVirgin Atlantic
Tue 12/168:05 pmLCY - SEA
1 stop23h 45mVirgin Atlantic
Deal found 10/23$640
This Virgin Atlantic deal was found by Cheapflights users on 10/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Virgin Atlantic is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/33:05 pmSEA - LCY
1 stop18h 15mVirgin Atlantic
Thu 12/117:45 amLCY - SEA
2 stops20h 50mVirgin Atlantic
Deal found 10/23$645
This Delta deal was found by Cheapflights users on 10/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/183:00 pmSEA - LCY
1 stop17h 35mDelta
Tue 11/258:40 amLCY - SEA
2 stops23h 21mDelta
Deal found 10/22$646
This SWISS deal was found by Cheapflights users on 10/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure SWISS is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/103:37 pmSEA - LCY
2 stops17h 28mSWISS
Thu 11/209:15 amLCY - SEA
2 stops21h 13mSWISS
Deal found 10/23$655
This SWISS deal was found by Cheapflights users on 10/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure SWISS is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/51:20 pmSEA - LCY
2 stops19h 45mSWISS
Tue 11/119:15 amLCY - SEA
2 stops22h 29mSWISS
Deal found 10/21$656
This United Airlines deal was found by Cheapflights users on 10/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/98:00 amSEA - LCY
2 stops20h 55mMultiple Airlines
Wed 11/199:50 amLCY - SEA
2 stops19h 01mMultiple Airlines
Deal found 10/23$665
This United Airlines deal was found by Cheapflights users on 10/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/262:40 pmSEA - LCY
2 stops19h 00mMultiple Airlines
Wed 12/39:50 amLCY - SEA
2 stops21h 25mMultiple Airlines
Deal found 10/23$675
This KAYAK deal was found by Cheapflights users on 10/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/2310:50 amSEA - LCY
2 stops22h 25mSWISS
Thu 10/309:15 amLCY - SEA
2 stops20h 30mSWISS
Deal found 10/23$685

Cheapflights Fare Finder

 
Customize your flight search to find flights from Seattle to London City that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated October 24, 2025.
Use the filters below to find and compare flights from Seattle to London City Airport that are best for you.

Fly from

Seattle

Fly to

London City

Route

Depart

Return

Price

SeattleLondon

SEA - LCY

SEALCY

Seattle/Tacoma Intl

Mon 12/8

3:05 pm-6:25 pm

1 stop19h 20m

London City

Tue 12/16

8:05 pm-11:50 am

1 stop23h 45m

$636

SeattleLondon

SEA - LCY

SEALCY

Seattle/Tacoma Intl

Tue 11/18

3:00 pm-4:35 pm

1 stop17h 35m

London City

Wed 11/26

8:40 am-10:23 pm

2 stops21h 43m

$646

SeattleLondon

SEA - LCY

SEALCY

Seattle/Tacoma Intl

Mon 11/10

3:37 pm-5:05 pm

2 stops17h 28m

London City

Thu 11/20

9:15 am-10:28 pm

2 stops21h 13m

$655

SeattleLondon

SEA - LCY

SEALCY

Seattle/Tacoma Intl

Tue 11/11

3:37 pm-5:05 pm

2 stops17h 28m

London City

Wed 11/26

9:20 am-10:28 pm

2 stops21h 08m

$655

SeattleLondon

SEA - LCY

SEALCY

Seattle/Tacoma Intl

Wed 11/12

2:40 pm-5:05 pm

2 stops18h 25m

London City

Mon 11/24

7:10 pm-8:51 pm

2 stops33h 41m

$655

SeattleLondon

SEA - LCY

SEALCY

Seattle/Tacoma Intl

Mon 11/24

3:37 pm-5:05 pm

2 stops17h 28m

London City

Tue 12/2

7:10 pm-9:00 pm

2 stops33h 50m

$656

SeattleLondon

SEA - LCY

SEALCY

Seattle/Tacoma Intl

Wed 11/5

1:20 pm-5:05 pm

2 stops19h 45m

London City

Tue 11/11

9:15 am-11:44 pm

2 stops22h 29m

$656

SeattleLondon

SEA - LCY

SEALCY

Seattle/Tacoma Intl

Wed 3/4

11:05 am-12:55 pm

2 stops17h 50m

London City

Tue 3/10

9:15 am-10:32 pm

2 stops20h 17m

$663

SeattleLondon

SEA - LCY

SEALCY

Seattle/Tacoma Intl

Sun 11/9

8:00 am-12:55 pm

2 stops20h 55m

London City

Wed 11/19

9:50 am-8:51 pm

2 stops19h 01m

$665

SeattleLondon

SEA - LCY

SEALCY

Seattle/Tacoma Intl

Wed 11/26

2:40 pm-5:40 pm

2 stops19h 00m

London City

Wed 12/3

9:50 am-11:15 pm

2 stops21h 25m

$675

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/23

Showing 1-10 of 22 results
1
2
3
  • Most accurate provider: When it comes to deals on Seattle-London City Airport flights, users find the pricing of Expedia to be most consistent on Cheapflights vs. Expedia Users can find the same prices on Seattle-London City Airport flight deals on Cheapflights vs. Expedia 90-95% of the time. Price accuracy is based on data collected from Seattle-London City Airport flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Seattle-London City Airport flights, Cheapflights users trust Expedia the most. Expedia has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Seattle-London City Airport flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Seattle to London City

Have a flexible travel schedule? Discover the best time to fly to London City from Seattle with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Seattle to London City Airport

What is the cheapest time of day to fly from SEA to LCY?

Find hourly flight availability from Seattle to London City. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated October 24, 2025.

When flying from Seattle to London City Airport, the time of day you fly usually plays a role in the price. Save by searching for a flight in the evening, which can drop the price by up to 30% versus a flight in the morning.

Reviews of airlines servicing London City

Get insights into the airlines that provide service to London City. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to London City. Reviews last updated October 24, 2025.
Get a feel of what it's like to fly with Scandinavian Airlines from Seattle to London City Airport by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Scandinavian Airlines
7.4
Good
1,538 reviews

Overall

7.4

Entertainment

6.6

Boarding

7.6

Food

6.6

Crew

8.0

Comfort

7.3

Reviews

1 / 20
10.0
Excellent

Anonymous,Jul 2025

OSL - CPH

Good was ok. Complimentary wine and beer was nice. Soft drinks should have been free too. Overall great flight
Scandinavian Airlines
7.4
Good
1,538 reviews
Scandinavian Airlines
7.4
Good
1,538 reviews

Overall

7.4

Entertainment

6.6

Boarding

7.6

Food

6.6

Crew

8.0

Comfort

7.3

Reviews

1 / 20
10.0
Excellent

Anonymous,Jul 2025

OSL - CPH

Good was ok. Complimentary wine and beer was nice. Soft drinks should have been free too. Overall great flight

Related info for your journey

Find useful and relevant information for your journey from Seattle to London City. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from Seattle to London City?

    Located just 11.4 mi from the city center, Seattle/Tacoma Intl is the airport most travelers will use when flying to London City from Seattle. Booking flights from Seattle/Tacoma Intl (SEA) to London City should be relatively easy as there are 0 daily outbound flights to London City from 1 airline.

  • How long is the flight from Seattle to London City Airport?

    A quick flight from Seattle to London City Airport can take about 17h 28m. Virgin Atlantic provides one of the quickest options available for as low as $655. Seattle and London City Airport are separated by a distance of 4794 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • What is the cheapest airline to fly from Seattle to London City Airport round-trip?

    According to our current data, Scandinavian Airlines ($962), offers the cheapest pricing from Seattle to London City Airport.

  • Can I find deals for flights from Seattle to London City that include hotel bookings?

    Yes. In addition to deals on Seattle to London City flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Seattle to London City?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Seattle to London City.

  • Can I find deals for business class flights from Seattle to London City?

    Yes. Cheapflights offers flight deals from Seattle to London City by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

See more FAQs

Traveling to a place near London City Airport?

Book flights to London City Airport if you plan to visit one of these locations
Hounslow
Ilford
Hayes
Southend-on-Sea
Harrow
Croydon
Eastleigh
Dartford
Dover
Winchester
Orpington
Gatwick
Borehamwood
Aylesbury
Bedford
Chipping Norton
Wembley
Folkestone
Eastbourne
Sutton

Browse thousands of different options on Cheapflights for your next trip

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Top airline flying from Seattle to London City

Discover the top airline that operate flights from Seattle to London City. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated October 24, 2025.
AirlineCheapestAverageFlexibilityOn-time
Scandinavian AirlinesCheapest$962Average$1,000FlexibilityNo cancel feeOn-time77%

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